I received this ScoopFree® Classic Self-Cleaning Litter Box for my honest review. First off, it runs on electricity, so an outlet is needed. It seems to be well made and has a removeable disposable tray to make changing the box easier. It has a sensor, so that it waits until the cat is gone before self cleaning. It uses less litter, and the litter helps absorb the liquids and smell. I would definitely recommend, especially for seniors because changing the box, and removing heavy litter from a traditional box is much harder.